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浏览模式: 标准 | 列表Tag:google

gc_enabled

Submitted by gouki on 2009, July 2, 12:14 PM

难道以后可以这样用了？

PHP代码
  1. <?php  
  2.   
  3. $usingGC = gc_enabled();  
  4. if( $usingGC == false){  
  5.     gc_enable();  
  6.     $usingGC = gc_enabled();  
  7. }  
  8. if( $ucingGC == true){  
  9.     gc_collect_cycles();  
  10. }  

不知道效果有多明显？

Tags: gabarge

PHP | 评论:0 | 阅读:18045

PHP自动识别字符集并完成转码

Submitted by gouki on 2009, June 9, 11:17 AM

在PHP处理页面的时候，我们对于字符集的转换都是采用了iconv或者mb_convert等函数，但，这其实是有一个前提的。即我们事先得知道in和out是什么样的编码，我们才能进行正确的转换。
虽然大多数转换都是在gbk和utf-8之间转，但如果不知道转换对象的编码怎么办呢？yhustc.com上就有这么一个函数safeEncoding，可以简单的识别UTF8和GBK的编码（国内，基本上也就这两种最常用吧。big5?咱们不考虑，哈哈）

原文地址为：http://www.yhustc.com/Blog/156.html
内容如下：

YBlog能接收引用通告，但是因为YBlog自己使用的是utf-8编码，如果对方的博客系统使用gb2312的编码的话，POST过来就会出现 乱码（除非对方POST前先转换编码）。在不能保证对方是否一定使用utf-8编码的情况下，自己做一个编码的检查和转换是很有必要的。写了个函数来完成 这个工作，原理很简单，因为gb2312/gbk是中文两字节，这两个字节是有取值范围的，而utf-8中汉字是三字节，同样每个字节也有取值范围。而英 文不管在何种编码情况下，都是小于128，只占用一个字节（全角除外）。

如果是文件形式的编码检查，还可以直接check utf-8的BOM信息，关于这方面的东西，大家可以看看TP工具箱的编码转换功能，我在那个AppCodingSwitch类中写了比较详细的注释。

话不多说，直接上函数，这个函数是用来对字符串进行检查和转码的。文件的检查与转码，看这里 [膘叔注：这个链接已经不存在了]

php代码
  1. //识别汉字编码,因为YBlog用的是utf-8,如果引用通告发过来的是gb2312的编码的话,需要可以识别并完成编码转换  
  2. function safeEncoding($string,$outEncoding = 'UTF-8')  
  3. {  
  4.     $encoding = "UTF-8";  
  5.     for($i=0;$i<strlen($string);$i++)  
  6.     {  
  7.         if(ord($string{$i})<128)  
  8.             continue;  
  9.  
  10.         if((ord($string{$i})&224)==224)  
  11.         {  
  12.             //第一个字节判断通过  
  13.             $char = $string{++$i};  
  14.             if((ord($char)&128)==128)  
  15.             {  
  16.                 //第二个字节判断通过  
  17.                 $char = $string{++$i};  
  18.                 if((ord($char)&128)==128)  
  19.                 {  
  20.                     $encoding = "UTF-8";  
  21.                     break;  
  22.                 }  
  23.             }  
  24.         }  
  25.         if((ord($string{$i})&192)==192)  
  26.         {  
  27.             //第一个字节判断通过  
  28.             $char = $string{++$i};  
  29.             if((ord($char)&128)==128)  
  30.             {  
  31.                 //第二个字节判断通过  
  32.                 $encoding = "GB2312";  
  33.                 break;  
  34.             }  
  35.         }  
  36.     }  
  37.       
  38.     if(strtoupper($encoding) == strtoupper($outEncoding))  
  39.         return $string;  
  40.     else 
  41.         return iconv($encoding,$outEncoding,$string);  
  42. } 

 

 

Tags: 编码, 转换

PHP | 评论:2 | 阅读:24933

MySQL-Proxy的安装配置

Submitted by gouki on 2009, April 19, 4:17 PM

本来对于mysql proxy 0.70的release是仅仅当成一个新闻来报道的。结果，老王却写了一篇教你如何配置的文章，你说我是转好呢还是不转好呢？
上午我刚写，人家老王下午就来配置，你说我不转，对得起人家伐？
所以，我只好辛苦一点，，转载一下喽。。

感谢老王

原文：http://hi.baidu.com/thinkinginlamp/blog/item/f96559821fbda8aa0cf4d200.html

MySQL-Proxy的二进制版本的安装相对简单，无需多言，下面介绍的是源代码安装：

安装pkg-config：

tar zxvf pkg-config-0.23.tar.gz
cd pkg-config-0.23
./configure
make
make install

确保PKG_CONFIG_PATH环境变量包含了相关的pkg-config配置文件路径：

export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

安装libevent：

tar zxvf libevent-1.4.10-stable.tar.gz
cd libevent-1.4.10-stable
./configure
make
make install

安装glib：

tar zxvf glib-2.20.0.tar.gz
cd glib-2.20.0
./configure
make
make install

安装lua：

tar zxvf lua-5.1.4.tar.gz
cd lua-5.1.4

如果你的服务器是64位的，这时要调整一下Makefile：vi src/Makefile，在CFLAGS里加上-fPIC，否则会出错：

/usr/bin/ld: /usr/local/lib/liblua.a(lapi.o):
relocation R_X86_64_32 against `luaO_nilobject_' can not be used when making a shared object;
recompile with -fPIC
/usr/local/lib/liblua.a: could not read symbols: Bad value

接下来不用执行常见的configure，直接make：

make linux
make install

安装pkg-config配置文件，以便编译mysql-proxy时能找到lua：

cp etc/lua.pc /usr/local/lib/pkgconfig/lua5.1.pc

如果没有执行此步骤的话，在后面编译安装mysql-proxy的时候，会得到类似下面的错误信息：

Package lua5.1 was not found in the pkg-config search path.
Perhaps you should add the directory containing `lua5.1.pc'
to the PKG_CONFIG_PATH environment variable
No package 'lua5.1' found

安装mysql：

这里介绍的是完整安装mysql，其实你只要安装mysql开发包即可。

tar zxvf mysql-5.1.33.tar.gz
cd tar zxvf mysql-5.1.33
./configure
make
make install
cp support-files/mysql.server /etc/init.d/mysql
chown +x /etc/init.d/mysql
cp support-files/my-[small|medium|large|huge|innodb-heavy-4G].cnf /etc/my.cnf

如果my.cnf里有skip-federated选项，就注释它，否则安装数据库的时候会出现类似下面的错误：
[ERROR] /usr/local/libexec/mysqld: unknown option '--skip-federated'

/usr/local/bin/mysql_install_db --user=mysql
/usr/local/bin/mysqld_safe --user=mysql &

保证系统能找到mysql_config，后面编译mysql-proxy会用到它：

export PATH=$PATH:/usr/local/bin

还要保证系统能找到mysql库文件：

vi /etc/ld.so.conf 加入/usr/local/lib目录

执行：/sbin/ldconfig /etc/ld.so.conf

安装mysql-proxy：

tar zxvf mysql-proxy-0.7.0.tar.gz
cd mysql-proxy-0.7.0
./configure
make
make install

按照官方介绍做好启动脚本/etc/init.d/mysql-proxy和参数脚本/etc/sysconfig/mysql-proxy，并设置：

chmod +x /etc/init.d/mysql-proxy
chkconfig --add mysql-proxy

搞定了，测试一下：/usr/local/sbin/mysql-proxy -V。官方论坛里有很多讨论，可以参阅。

Tags: mysql proxy, 老王

Baby | 评论:0 | 阅读:28555

感冒发烧，很不舒服

Submitted by gouki on 2009, April 9, 2:35 PM

如题。唉。。。
身体越来越差了，看看新闻，每天都有人过劳死，或者猝死。
不知道自己啥时候会变成这样。

Tags: 生病

Misc | 评论:0 | 阅读:20570

PHP处理中文二三例

Submitted by gouki on 2009, March 13, 10:23 PM

在网上看到一个贴子，是说利用16进制输出所有中文，例子如下：

PHP代码
  1. <?php  
  2. $begin = hexdec ( " 4e00 " ); // 16进制转化为10进制  
  3. $end = hexdec ( " 9fa5 " );  
  4. $a = '["' ;  
  5. for ( $i = $begin ; $i <= $end ; $i ++ ) {  
  6.     $a .= ' \u ' . dechex ( $i );  
  7.     if ( $i % 10 == 0 ) {  
  8.         $a .= " <br> " ; 
  9.     } 
  10. } 
  11. $a .= ' "] ' ;  
  12. print_r (json_decode( $a ));  
  13. ?>  

看到这个例子，相信也能看得出了，那两个数字是不是与网上那种正则判断中文的很象啊。

由于json_encode转换中文时会把中文全部转换成16进制，这样在输出的时候就不会因为浏览器的字符集不支持而出现问题。所以同样的，利用decode也就相当于把这些16进制转换成中文了。其实并不需要这么复杂，只要在前面加上&#后面加上;就可以输出中文了。

看到这样的代码后想起昨天一个根据.net程序改的读取中文字的拼音的程序。

PHP代码
  1. <?php  
  2.   
  3.   
  4. $strVal = array(  
  5.  -20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036,    
  6.  -20032,-20026,-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763,    
  7.  -19756,-19751,-19746,-19741,-19739,-19728,-19725,-19715,-19540,-19531,-19525,-19515,    
  8.  -19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,-19261,-19249,    
  9.  -19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,    
  10.  -19003,-18996,-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,    
  11.  -18731,-18722,-18710,-18697,-18696,-18526,-18518,-18501,-18490,-18478,-18463,-18448,    
  12.  -18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183, -18181,-18012,    
  13.  -17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,    
  14.  -17733,-17730,-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,    
  15.  -17468,-17454,-17433,-17427,-17417,-17202,-17185,-16983,-16970,-16942,-16915,-16733,    
  16.  -16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459,-16452,-16448,    
  17.  -16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216,    
  18.  -16212,-16205,-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,    
  19.  -15933,-15920,-15915,-15903,-15889,-15878,-15707,-15701,-15681,-15667,-15661,-15659,    
  20.  -15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416,-15408,-15394,    
  21.  -15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150,    
  22.  -15149,-15144,-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,    
  23.  -14941,-14937,-14933,-14930,-14929,-14928,-14926,-14922,-14921,-14914,-14908,-14902,    
  24.  -14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668,-14663,-14654,    
  25.  -14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345,    
  26.  -14170,-14159,-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,    
  27.  -14109,-14099,-14097,-14094,-14092,-14090,-14087,-14083,-13917,-13914,-13910,-13907,    
  28.  -13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658,-13611,-13601,    
  29.  -13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343,    
  30.  -13340,-13329,-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,    
  31.  -13068,-13063,-13060,-12888,-12875,-12871,-12860,-12858,-12852,-12849,-12838,-12831,    
  32.  -12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346,-12320,-12300,    
  33.  -12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798,    
  34.  -11781,-11604,-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,    
  35.  -11055,-11052,-11045,-11041,-11038,-11024,-11020,-11019,-11018,-11014,-10838,-10832,    
  36.  -10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331,-10329,-10328,    
  37.  -10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254    
  38. );  
  39. $strPy  = array(  
  40.  "A","Ai","An","Ang","Ao","Ba","Bai","Ban","Bang","Bao","Bei","Ben",    
  41.  "Beng","Bi","Bian","Biao","Bie","Bin","Bing","Bo","Bu","Ba","Cai","Can",    
  42.  "Cang","Cao","Ce","Ceng","Cha","Chai","Chan","Chang","Chao","Che","Chen","Cheng",    
  43.  "Chi","Chong","Chou","Chu","Chuai","Chuan","Chuang","Chui","Chun","Chuo","Ci","Cong",    
  44.  "Cou","Cu","Cuan","Cui","Cun","Cuo","Da","Dai","Dan","Dang","Dao","De",    
  45.  "Deng","Di","Dian","Diao","Die","Ding","Diu","Dong","Dou","Du","Duan","Dui",    
  46.  "Dun","Duo","E","En","Er","Fa","Fan","Fang","Fei","Fen","Feng","Fo",    
  47.  "Fou","Fu","Ga","Gai","Gan","Gang","Gao","Ge","Gei","Gen","Geng","Gong",    
  48.  "Gou","Gu","Gua","Guai","Guan","Guang","Gui","Gun","Guo","Ha","Hai","Han",    
  49.  "Hang","Hao","He","Hei","Hen","Heng","Hong","Hou","Hu","Hua","Huai","Huan",    
  50.  "Huang","Hui","Hun","Huo","Ji","Jia","Jian","Jiang","Jiao","Jie","Jin","Jing",    
  51.  "Jiong","Jiu","Ju","Juan","Jue","Jun","Ka","Kai","Kan","Kang","Kao","Ke",    
  52.  "Ken","Keng","Kong","Kou","Ku","Kua","Kuai","Kuan","Kuang","Kui","Kun","Kuo",    
  53.  "La","Lai","Lan","Lang","Lao","Le","Lei","Leng","Li","Lia","Lian","Liang",    
  54.  "Liao","Lie","Lin","Ling","Liu","Long","Lou","Lu","Lv","Luan","Lue","Lun",    
  55.  "Luo","Ma","Mai","Man","Mang","Mao","Me","Mei","Men","Meng","Mi","Mian",    
  56.  "Miao","Mie","Min","Ming","Miu","Mo","Mou","Mu","Na","Nai","Nan","Nang",    
  57.  "Nao","Ne","Nei","Nen","Neng","Ni","Nian","Niang","Niao","Nie","Nin","Ning",    
  58.  "Niu","Nong","Nu","Nv","Nuan","Nue","Nuo","O","Ou","Pa","Pai","Pan",    
  59.  "Pang","Pao","Pei","Pen","Peng","Pi","Pian","Piao","Pie","Pin","Ping","Po",    
  60.  "Pu","Qi","Qia","Qian","Qiang","Qiao","Qie","Qin","Qing","Qiong","Qiu","Qu",    
  61.  "Quan","Que","Qun","Ran","Rang","Rao","Re","Ren","Reng","Ri","Rong","Rou",    
  62.  "Ru","Ruan","Rui","Run","Ruo","Sa","Sai","San","Sang","Sao","Se","Sen",    
  63.  "Seng","Sha","Shai","Shan","Shang","Shao","She","Shen","Sheng","Shi","Shou","Shu",    
  64.  "Shua","Shuai","Shuan","Shuang","Shui","Shun","Shuo","Si","Song","Sou","Su","Suan",    
  65.  "Sui","Sun","Suo","Ta","Tai","Tan","Tang","Tao","Te","Teng","Ti","Tian",    
  66.  "Tiao","Tie","Ting","Tong","Tou","Tu","Tuan","Tui","Tun","Tuo","Wa","Wai",    
  67.  "Wan","Wang","Wei","Wen","Weng","Wo","Wu","Xi","Xia","Xian","Xiang","Xiao",    
  68.  "Xie","Xin","Xing","Xiong","Xiu","Xu","Xuan","Xue","Xun","Ya","Yan","Yang",    
  69.  "Yao","Ye","Yi","Yin","Ying","Yo","Yong","You","Yu","Yuan","Yue","Yun",    
  70.  "Za", "Zai","Zan","Zang","Zao","Ze","Zei","Zen","Zeng","Zha","Zhai","Zhan",    
  71.  "Zhang","Zhao","Zhe","Zhen","Zheng","Zhi","Zhong","Zhou","Zhu","Zhua","Zhuai","Zhuan",    
  72.  "Zhuang","Zhui","Zhun","Zhuo","Zi","Zong","Zou","Zu","Zuan","Zui","Zun","Zuo"    
  73. );  
  74.   
  75. function getPy ( $string )  
  76. {  
  77.     global $strVal,$strPy;  
  78.     $py = '';  
  79.     $strLen = strLen( $string );  
  80.     for ( $ii = 0; $ii < $strLen; $ii++ ){  
  81.         $s = ord( $string[$ii] );  
  82.         if ( $s  > 160 ){  
  83.             $ii++;  
  84.             $ss = ord( $string[$ii] );  
  85.             $_ss = $s * 256 + $ss - 65536;   
  86.             if ( $_ss == -9254 ){  
  87.                 $py .= "Zhen";  
  88.             }else{  
  89.                 foreach ( $strVal as $_k => $_v ){  
  90.                     $_index = $_v > $_ss ? ($_k-1) : ($_v == $_ss ? $_k : 0 );  
  91.                     if ( $_index ){  
  92.                         $py .= $strPy[$_index];  
  93.                         break;  
  94.                     }  
  95.                 }  
  96.             }  
  97.         }else{  
  98.             $py .= " {$string[$ii]} ";  
  99.         }  
  100.     }  
  101.     return $py;  
  102. }  
这是根据网上的例子改写而来，其实BUG不少，作业的作，是认不出的。还有GBK的字符也是认不出拼音的（好象GBK里的一些特殊字符的拼音规则和上面的数组并不一致）

不过，这些都算是我的备份吧。呵呵，同样，如果对拼音要求不高的朋友也可以拿来用用。

Tags: 中文处理

PHP | 评论:0 | 阅读:22652

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